CN109545141A - Display panel, pixel circuit and its driving method - Google Patents

Display panel, pixel circuit and its driving method Download PDF

Info

Publication number
CN109545141A
CN109545141A CN201811537143.0A CN201811537143A CN109545141A CN 109545141 A CN109545141 A CN 109545141A CN 201811537143 A CN201811537143 A CN 201811537143A CN 109545141 A CN109545141 A CN 109545141A
Authority
CN
China
Prior art keywords
pixel circuit
switching tube
circuit unit
tube
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811537143.0A
Other languages
Chinese (zh)
Inventor
范龙飞
王龙彦
朱晖
韩珍珍
胡思明
吴剑龙
张露
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Govisionox Optoelectronics Co Ltd
Kunshan Guoxian Photoelectric Co Ltd
Original Assignee
Kunshan Guoxian Photoelectric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunshan Guoxian Photoelectric Co Ltd filed Critical Kunshan Guoxian Photoelectric Co Ltd
Priority to CN201811537143.0A priority Critical patent/CN109545141A/en
Publication of CN109545141A publication Critical patent/CN109545141A/en
Priority to PCT/CN2019/103378 priority patent/WO2020119185A1/en
Priority to US17/000,586 priority patent/US20200388216A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3266—Details of drivers for scan electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3275—Details of drivers for data electrodes
    • G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0238—Improving the black level
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
    • G09G2320/0295—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel by monitoring each display pixel

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

This application discloses a kind of display panel, pixel circuit and its driving methods, wherein pixel circuit includes driving chip, several pixel circuit units connecting with driving chip and several circuit for detecting units, pixel circuit unit includes first switch tube and electroluminescent cell, one path terminal of first switch tube and the anode of electroluminescent cell connect, and the control terminal of first switch tube connects scanning signal end；First path terminal of second switch connects the anode of electroluminescent cell therein by pixel circuit unit, and the control terminal of second switch connects the first clock signal end, and the alternate path end of second switch connects driving chip；It is connected between at least two circuit for detecting units being disposed adjacent by connection terminal in a second direction, and connects the same pin of driving chip by the connection terminal.The application can detect convenient for the anode potential of high pixel density display panel, and the display effect of display panel can be improved.

Description

Display panel, pixel circuit and its driving method
Technical field
The present invention relates to field of display technology, and in particular to a kind of display panel, pixel circuit and its driving method.
Background technique
AMOLED (Active-matrix organic light-emitting diode, active matrix organic light-emitting two Polar body or active-matrix organic light emitting diode) display screen is mechanical, electrical since the advantages such as wide viewing angle, low-power consumption are widely used in hand Depending in.
However, as time goes by, OLED (organic light-emitting diode, organic light emitting diode) Efficiency also can fast decay, this will lead to screen body brightness gradually decrease.Display effect is influenced, influence display panel uses the longevity Life.
Summary of the invention
The application mainly solves the problems, such as to be to provide a kind of display panel, pixel circuit and its driving method, can be improved The display effect of display panel improves the service life of display panel.
In order to solve the above technical problems, the technical solution that the application uses is: providing a kind of pixel circuit, pixel electricity Road includes driving chip and several pixel circuit units connecting with driving chip and several circuit for detecting units, In, one group of pixel circuit unit that the correspondence of each circuit for detecting unit independently is arranged along first direction, and with one group of picture Each selectively coupled connection of pixel circuit unit, first direction are the pixel circuit unit being arranged in array in plain circuit unit Line direction or column direction；Wherein, each pixel circuit unit includes at least first switch tube and electroluminescent cell, and first opens The path terminal for closing pipe is electrically connected with the anode of electroluminescent cell, and the control terminal of first switch tube connects scanning signal end；Often One circuit for detecting unit includes at least selection circuit, and selection circuit includes at least second switch, and the first of second switch is logical Terminal connects the anode of electroluminescent cell therein by respective pixel circuit unit, the control terminal connection of second switch the The alternate path end at one clock signal end, second switch connects driving chip；Wherein, when second in circuit for detecting unit opens When the first switch tube that pass manages in the pixel circuit unit of in the conductive state and coupled connection is also on state, drive The current potential of the anode of electroluminescent cell in the corresponding pixel circuit unit of first switch tube of dynamic chip detecting on state, At least two in second direction circuit for detecting units being disposed adjacent are at least two to be disposed adjacent in one group, one group It is connected between circuit for detecting unit by connection terminal, and connects the same pin of the driving chip by the connection terminal, The second direction is different from first direction, is the column direction or line direction of the pixel circuit unit being arranged in array.
In order to solve the above technical problems, that the application uses another solution is that providing a kind of above-mentioned pixel circuit Driving method, driving method include: the current potential of the anode of electroluminescent cell in each pixel circuit unit of detecting, and will be electroluminescent The current potential of the anode of light-emitting component is embodied in formation anode voltage thermal compensation signal in driving chip；Wherein, each pixel circuit list Member includes at least first switch tube and electroluminescent cell；Each circuit for detecting unit includes at least selection circuit, selection circuit Including at least second switch；The step of detecting the current potential of the anode of electroluminescent cell in each pixel circuit unit include: Second switch conducting in the first clock signal control circuit for detecting unit is inputted, input scanning signal controls respective pixel circuit First switch tube is connected in unit, so that the anode of driving chip and electroluminescent cell in respective pixel circuit unit is led It is logical, and then obtain the current potential of the anode of electroluminescent cell；Driving chip calls anode voltage thermal compensation signal and by anode voltage Thermal compensation signal is exported to corresponding pixel circuit unit；Wherein, second in the first clock signal of input control circuit for detecting unit In the step of switching tube is connected, the second switch that control is located in same group at least two connected circuit for detecting is single respectively Solely conducting, the electricity of the anode of the electroluminescent cell in respective pixel circuit unit is obtained with section in different times respectively Position.
In order to solve the above technical problems, the another technical solution that the application uses is: providing a kind of display panel, the display Panel includes substrate and the pixel circuit that is set on substrate, and pixel circuit is above-mentioned pixel circuit.
The application includes driving chip and several pixel circuits connecting with driving chip by setting pixel circuit Unit and several circuit for detecting units, using circuit for detecting unit conducting driving chip with it is electroluminescent in respective pixel circuit unit The anode of light-emitting component.So as to get the anode potential of electroluminescent cell convenient for driving chip, it is convenient for subsequent display Compensation of the stage to anode potential, the circuit can be merged preferably with pixel circuit unit, and circuit structure is simple, and the circuit Structure designs convenient for reconnaissance phase with the display stage independently of each other, so that reconnaissance phase will not have an impact the display stage, and And it is connected between circuit for detecting unit by connection terminal by that will be located in one group, and drive is correspondingly connected with by the connection terminal The same pin of dynamic chip, can save the pin on driving chip, convenient for the saving of hardware resource.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.Wherein:
Fig. 1 is the electrical block diagram of the pixel circuit of the application first embodiment；
Fig. 2 is the electrical block diagram of the pixel circuit of the application second embodiment；
Fig. 3 is the schematic illustration of the embodiment of the present application double grid switching tube structure；
Fig. 4 is the flow diagram of the embodiment of the driving method of the pixel circuit of the embodiment of the present application；
Fig. 5 is that a kind of detailed process in display stage of embodiment of the driving method of the pixel circuit of the embodiment of the present application is shown It is intended to；
Fig. 6 is the structural schematic diagram of the embodiment of the present application display panel.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, rather than whole embodiments.Based on this Embodiment in application, those of ordinary skill in the art are obtained every other under the premise of not making creative labor Embodiment shall fall in the protection scope of this application.
Referring to Fig. 1, Fig. 1 is the electrical block diagram of the pixel circuit of the application first embodiment.
In the present embodiment, pixel circuit includes driving chip 10 and several pixels connecting with driving chip 10 electricity Road unit 20 and several circuit for detecting units 30.
One group of pixel circuit unit 20 that the correspondence of each circuit for detecting unit 30 independently is arranged along first direction, and With the selectively coupled connection of pixel circuit unit 20 each in one group of pixel circuit unit 20, first direction is arranged in array The line direction or column direction of pixel circuit unit 20.
For example, first direction can be the column direction for the pixel circuit unit being arranged in array.It is only to illustrate in Fig. 1, Only illustrate the company of a pixel circuit unit 20 and circuit for detecting unit 30 in several pixel circuit units 20 of a column Relationship is connect, it can be appreciated that other pixel circuit units 20 and the connection relationship of the circuit for detecting unit 30 of the column are same, It is not embodied one by one in figure.
It is connected between at least two circuit for detecting units 30 being disposed adjacent by connection terminal in a second direction, and is led to The same pin of the connection terminal connection driving chip 10 is crossed, second direction is different from first direction, to be arranged in array Pixel circuit unit 20 column direction or line direction.For example, as shown in Figure 1, two adjacent circuit for detecting units 30 are one Group is connected by connection terminal between the two；Certainly in a further embodiment, the circuit for detecting unit 30 in one group is not Be limited to two, can for three, four, it is even more.For example, as shown in Figure 1, second direction is the pixel electricity being arranged in array The line direction of road unit 20.
Each pixel circuit unit 20 includes at least first switch tube T1 and electroluminescent cell D, first switch tube T1's One path terminal is electrically connected with the anode of electroluminescent cell D, control terminal connection scanning signal (scan) end of first switch tube T1.
Each circuit for detecting unit 30 includes at least selection circuit 31, and selection circuit 31 includes at least second switch T2, The first path terminal of second switch T2 connects its (referring to the respective pixel circuit unit) by respective pixel circuit unit 20 In electroluminescent cell D anode, second switch T2 control terminal connection the first clock signal (S1) end, second switch The alternate path end (as connection terminal) of T2 connects driving chip 10 (respective pins).Wherein, respective pixel circuit unit Refer to the pixel circuit unit in the conductive state with circuit for detecting unit 30.
When the second switch T2 in circuit for detecting unit 30 is in the conductive state and the pixel circuit of coupled connection When first switch tube T1 in unit 20 is also on state, driving chip 10 detects T1 pairs of first switch tube of on state The current potential of the anode of electroluminescent cell D in the pixel circuit unit 20 answered.
Optionally, the first switch tube T1 in each pixel circuit unit 20 to arrange in a second direction is connected to a scanning Signal end is shared with scan signal scan.Optionally, each circuit for detecting unit 30 further comprises reset circuit 32, Reset circuit 32 includes at least third switch transistor T 3, and the first path terminal of third switch transistor T 3 passes through respective pixel circuit unit 20 Connect the anode of electroluminescent cell D in its (referring to the respective pixel circuit unit), the control terminal connection of third switch transistor T 3 Second clock signal S2, alternate path end connection reset signal (reset) end of third switch transistor T 3.
Referring to Fig. 2, Fig. 2 is the electrical block diagram of the pixel circuit of the application second embodiment.
In the present embodiment, each pixel circuit unit 20 further comprise storage capacitance C and with electroluminescent cell D One end of the current control driving tube (T5) that anode is of coupled connections, storage capacitance C is selectively of coupled connections with driving chip 10, separately One end selectivity and the control terminal of current control driving tube (T5) are of coupled connections, for receiving and storing from driving chip 10 Anode voltage thermal compensation signal, and according to anode voltage compensation signal control current control driving tube (T5).
The first path terminal selectivity of third switch transistor T 3 couples company with storage capacitance C in each circuit for detecting unit 30 It connects, for carrying out selective reset processing to storage capacitors C.By carrying out reset processing to storage capacitors C, is conducive to improve and deposit Storage holds C to the storage precision of anode voltage thermal compensation signal.
It optionally, further include the tenth switch transistor T 10 in the selection circuit of each circuit for detecting unit, the tenth opens The first path terminal and one end of storage capacitance C for closing pipe T10 are of coupled connections, the alternate path end of the tenth switch transistor T 10 with connect Terminal and driving chip 10 connect, and the control terminal of the tenth switch transistor T 10 connects the 5th clock signal end (S5).
Optionally, pixel circuit unit 20 further comprises the 4th switch transistor T 4, the 5th driving tube T5, the 6th switching tube T6, the 7th switch transistor T 7, the 8th switch transistor T 8 and the 9th switch transistor T 9, wherein the 5th driving tube T5 is current control driving Pipe.
First path terminal of the 4th switch transistor T 4 connects the first end of the first operating voltage VDD and storage capacitors C, stores up simultaneously The first end for depositing capacitor C also connects the end the first operating voltage (VDD), the 5th driving of alternate path end connection of the 4th switch transistor T 4 The first path terminal of pipe T5 and the alternate path end of the 9th switch transistor T 9, while the first path terminal of the 5th driving tube T5 also connects The alternate path end of 9th switch transistor T 9, control terminal connection enable signal (EM) end of the 4th switch transistor T 4.
The alternate path end of 5th driving tube T5 connects the first path terminal and the 7th switch transistor T 7 of the 6th switch transistor T 6 Alternate path end, while the first path terminal of the 6th switch transistor T 6 also connects the alternate path end of the 7th switch transistor T 7；5th drives The second end of the control terminal connection storage capacitance C of dynamic pipe T5.
The alternate path end of the alternate path end connection first switch tube T1 of 6th switch transistor T 6 and electroluminescent cell D Anode, control terminal connection enable signal (EM) end of the 6th switch transistor T 6.
First path terminal of the 7th switch transistor T 7 connects the control terminal of the 5th driving tube T5 and the second end of storage capacitors, the Control terminal connection third clock signal (S3) end of seven switch transistor Ts 7.
The second end of the first path terminal connection storage capacitance C of 8th switch transistor T 8, the alternate path of the 8th switch transistor T 8 The first of the first path terminal for connecting first switch tube T1, the first path terminal of second switch T2 and third switch transistor T 3 is held to lead to Terminal, the control terminal of the 8th switch transistor T 8 connect the 4th clock signal (S4) end.
First path terminal of the 9th switch transistor T 9 connects the first path terminal of the 5th switch transistor T 5, and the of the 9th switch transistor T 9 Two path terminals connect the first path terminal of the tenth switch transistor T 10, and the alternate path end of the tenth switch transistor T 10 connects aforementioned connecting pin Son and connection driving chip 10 (respective pins), control terminal connection third clock signal (S3) end of the 9th switch transistor T 9, the The control terminal of ten switch transistor Ts 10 connects the 5th clock signal (S5) end.
First end connection the first operating voltage (VDD) end of storage capacitance C, the cathode connection second of electroluminescent cell D First path terminal and the 8th at operating voltage (VSS) end, the first path terminal connection first switch tube T1 of second switch T2 is opened Close the alternate path end of pipe T8, the first path terminal and the 8th of the first path terminal connection first switch tube T1 of third switch transistor T 3 The alternate path end of switch transistor T 8.
Optionally, the first switch tube T1 in each pixel circuit unit 20 to arrange in a second direction shares same scanning letter The end number (scan)；First switch tube T1 in each pixel circuit unit 20 of first direction arrangement, which is respectively independently connected, accordingly to be swept Retouch signal；In reconnaissance phase and display stage, pixel circuit unit 20 each in pixel circuit is swept line by line along first direction It retouches.
Optionally, corresponding to each pixel circuit unit 20 arranged in a second direction, third is opened in circuit for detecting unit 30 It closes pipe T3 and shares same second clock signal S2 and same reset signal reset.
Optionally, corresponding to each pixel circuit unit 20 arranged in a second direction, second is opened in circuit for detecting unit 30 When the control terminal of pass pipe T2 accesses different first according to the luminescent color of electroluminescent cell D in respective pixel circuit unit 20 Sequential signal S1 (R), S1 (G) or S1 (B).
Optionally, corresponding to each group of adjacent two pixel circuit unit 20 arranged in a second direction, circuit for detecting The alternate path end of second switch T2 is correspondingly connected with the same input and output pin of driving chip 10 in unit 30.
For example, second direction is line direction, with each pixel circuit list of a line as shown in Figure 1, first direction is column direction First switch tube T1 in member 20 is shared with scan signal scan；First switch in each pixel circuit unit 20 of same row Pipe T1 is respectively independently connected respective scanned signal, i.e., does not receive scanning signal simultaneously；In reconnaissance phase and display stage, along column side Each pixel circuit unit 20 progressively scans in pixel circuit.For each pixel circuit unit 20 of same a line, detecting Third switch transistor T 3 shares same second clock signal S2 and same reset signal reset in circuit unit 30.For same a line Each pixel circuit unit 20, the control terminal of second switch T2 is according to respective pixel circuit unit 20 in circuit for detecting unit 30 The luminescent color of middle electroluminescent cell D accesses different the first clock signal S1 (R), S1 (G) or S1 (B)；For same Each group of capable adjacent two pixel circuit unit 20, the alternate path end pair of second switch T2 in circuit for detecting unit 30 The same input and output pin of driving chip 10 should be connected.For example, as shown, four pixels from left to right in the row direction In circuit unit 20, the connection terminal of the adjacent pixel circuit unit 20 of the first two connects same input and output pin Out (1), The connection terminal of latter two adjacent pixel circuit unit 20 connects same input and output pin Out (2).
Specifically, each pixel circuit unit 20 correspond to display panel a sub-pixel unit, such as Fig. 2 in from Left-to-right three sub-pixel units are respectively red sub-pixel unit (R), green sub-pixels unit (G), blue subpixels list First (B).The sub-pixel unit (RGB) of adjacent three kinds of colors of red, green, blue forms a pixel unit, by controlling sub-pix The different grayscale of unit, so that sub-pixel unit (RGB) colour mixture of three kinds of colors of red, green, blue realizes that the difference of pixel unit is aobvious Show color.
A scanning signal scan, which is shared, positioned at the sub-pixel unit of the different colours of same a line (shares same scanning Line), share the same reset signal reset, share the same second clock signal S2.The company of every group of adjacent sub-pixel unit The same input and output pin of the correspondingly connected driving chip 10 of connecting terminal.The second switch of the sub-pixel unit of different colours The connection that the control terminal of T2 connects correspondingly different the first clock signal S1 (R), S1 (G) or S1 (B).
Referring to Fig. 3, Fig. 3 is the schematic illustration of the embodiment of the present application double grid switching tube structure.Optionally, the 7th switch Pipe T7 and the 8th switch transistor T 8 are double grid switching tube structure, and double grid switching tube structure includes the first sub switch pipe T01 and second The grid of sub switch pipe T02, the first sub switch pipe T01 and the second sub switch pipe T02 are connected together as double grid switching tube knot The control terminal of structure, first path terminal of the first path terminal of the first sub switch pipe T01 as double grid switching tube structure, the second son are opened Close alternate path end of the alternate path end of pipe T02 as double grid switching tube structure, the alternate path end of the first sub switch pipe T01 It is connected with the first path terminal of the second sub switch pipe T02.
By the above-mentioned means, the leakage current of the 7th switch transistor T 7 and the 8th switch transistor T 8 can be reduced, power loss is reduced, Promote the display effect of electroluminescent cell D.Certainly, in other embodiments, the 7th switch transistor T 7 and the 8th switch transistor T 8 The metal-oxide-semiconductor of single gate can be used, the embodiment of the present application does not limit this.
Optionally, first switch tube T1, second switch T2, third switch transistor T 3, the 4th switch transistor T 4, the 5th driving tube T5, the 6th switch transistor T 6, the 7th switch transistor T 7, the 8th switch transistor T 8 and the 9th switch transistor T 9 are can be for metal-oxide-semiconductor, specifically It can be thin film transistor (TFT), and the first path terminal is connected with alternate path end when control terminal accesses low potential, terminated in control The first path terminal and alternate path end are ended when entering high potential.In other embodiments, opposite configuration can be carried out, for example, When control terminal accesses low potential, the first path terminal and alternate path end are ended, the first path terminal when control terminal accesses high potential It is connected with alternate path end.For example, p-type metal-oxide-semiconductor is the conducting when control terminal accesses low-potential signal, when accessing high potential signal Cut-off；N-type metal-oxide-semiconductor is ended when accessing low potential in control terminal access high potential conducting.
Optionally, first switch tube T1, second switch T2, third switch transistor T 3, the 4th switch transistor T 4, the 5th driving tube T5, the 6th switch transistor T 6, the 7th switch transistor T 7, the 8th switch transistor T 8 and respective first path terminal of the 9th switch transistor T 9 and One of them in two path terminals is source electrode, and another one is drain electrode, and respective control terminal is grid.
Optionally, electroluminescent cell can be OLED light-emitting component, specifically can be AMOLED (Active-matrix Organic light-emitting diode, active matrix organic light-emitting diode or active-matrix organic light emitting diode). In other embodiments, it can also not limited this using other electroluminescent cells, the embodiment of the present application.
Referring to Fig. 4, Fig. 4 is the flow diagram of the embodiment of the driving method of the pixel circuit of the embodiment of the present application.
In the present embodiment, the driving method of pixel circuit can include:
Step S11: reconnaissance phase: the current potential of the anode of electroluminescent cell in each pixel circuit unit is detected, and will The current potential of the anode of electroluminescent cell is embodied in formation anode voltage thermal compensation signal in driving chip.
Wherein, each pixel circuit unit 20 includes at least first switch tube T1 and electroluminescent cell D；Each detecting electricity Road unit 30 includes at least selection circuit 31, and selection circuit includes at least second switch T2；Detect each pixel circuit unit The step of current potential of the anode of electroluminescent cell D, can specifically include in 20: input the first clock signal S1 control detecting electricity The first path terminal of second switch T2 and the conducting of alternate path end in road unit 30, input scanning signal scan control first are opened Close pipe T1 the first path terminal and alternate path end conducting so that driving chip 10 with it is electroluminescent in respective pixel circuit unit 20 The anode of light-emitting component D is connected, and then obtains the current potential of the anode of electroluminescent cell D.
Wherein, in the first clock signal S1 of input control circuit for detecting unit 30 the step of second switch T2 conducting, Control is located at second switch T2 points in same group (circuit for detecting unit) at least two adjacent circuit for detecting units 30 It is not connected not individually, obtains the anode of the electroluminescent cell D in respective pixel circuit unit 30 respectively with section in different times Current potential.
For example, as shown in Figure 1, existing at this time in one group of circuit for detecting unit including two circuit for detecting units 30 in Fig. 1 In the step of inputting second switch T2 conducting in the first clock signal S1 control circuit for detecting unit 30, in first time period control Make the second switch of one of circuit for detecting unit 30 in two adjacent in a second direction pixel circuit units 20 T2 conducting, the second switch T2 cut-off of another circuit for detecting unit 30；In the second time period for being different from first time period Control the second switch T2 cut-off of one of circuit for detecting unit 30 above-mentioned, another circuit for detecting unit 30 above-mentioned Second switch T2 conducting, and then obtain corresponding electroluminescent cell D's in first time period and second time period respectively The current potential of anode.In other words, corresponding (refer to and two adjacent detectings electricity is obtained in first time period and second time period respectively Road unit is corresponding) adjacent two groups of electroluminescent hairs along the pixel circuit unit 20 of first direction (such as column direction in figure) arrangement The current potential of the anode of optical element D.
For example, being obtained respectively in first time period and second time period adjacent in the case where being column direction in a first direction The electroluminescent cell D of the pixel circuit unit 20 of two column.The respective period (first time period and second time period) into One step controls first switch tube T1 by scanning signal Scan and obtains to 20 timesharing of each pixel circuit unit of same row The current potential of the anode of electroluminescent cell D in respective pixel circuit unit 20.
Optionally, in reconnaissance phase, the current potential of the current potential of the first clock signal S1 and the second clock signal S2 can not have It is required that enabling to electroluminescent cell D to shine, but in order to reduce reconnaissance phase for the shadow of electroluminescent cell D Ring, it is proposed that the current potential of the current potential of the first clock signal S1 and the second clock signal S2 it is small as far as possible.
For the first clock signal S1 can there is no limit as long as keep employed in each reconnaissance phase in the application First clock signal S1 is identical, and keeps the second clock signal S2 employed in each reconnaissance phase identical, by detecing every time The potential difference for surveying the anode of electroluminescent cell D forms anode voltage thermal compensation signal.
Step S12: the display stage: driving chip calls anode voltage thermal compensation signal and exports anode voltage thermal compensation signal To corresponding pixel circuit unit.
Each circuit for detecting unit 30 further comprises reset circuit 32 in the application, and reset circuit 32 includes at least third Switch transistor T 3；Optionally, the step of detecting the current potential of the anode of electroluminescent cell D in each pixel circuit unit 20 is also wrapped It includes: in obtaining respective pixel circuit unit 20 before the current potential of the anode of electroluminescent cell D, in advance to electroluminescent member The current potential of the anode of part D carries out initialization process.
The step of wherein carrying out initialization process to the current potential of the anode of electroluminescent cell D includes: the second timing of input Signal S2 controls the first path terminal and the conducting of alternate path end of third switch transistor T 3, and input scanning signal scan control first is opened The first path terminal and the conducting of alternate path end of pipe T1 are closed, so that reset signal (reset) end and respective pixel circuit unit 20 The anode of middle electroluminescent cell D is connected, and then initializes to the current potential of the anode of electroluminescent cell D.
Optionally, the electroluminescent member in detecting one group of pixel circuit unit 20 corresponding with a circuit for detecting unit 30 During the current potential (including the process initialized to anode) of the anode of part D, the second clock signal S2 of input control the The first path terminal and alternate path end constant conduction of three switch transistor Ts 3, so that electroluminescent cell D continuous illumination, thus Influence of the reconnaissance phase for electroluminescent cell D can be reduced.
Referring to Fig. 5, Fig. 5 is a kind of embodiment display stage of the driving method of the pixel circuit of the embodiment of the present application Idiographic flow schematic diagram.Each pixel circuit unit 20 further includes storage capacitance C and couples company with the anode of electroluminescent cell D The current control driving tube (T5) connect, the selection circuit of each pixel circuit unit further comprise the tenth switching tube.
Optionally, the display stage can specifically include:
Step S121: signal write-in processing is carried out to storage capacitance C in each pixel circuit unit 20.
Wherein, the step of carrying out signal write-in processing to storage capacitance C in each pixel circuit unit 20 includes: that control is detectd The tenth switch transistor T 10 is in the conductive state in slowdown monitoring circuit unit 30, and controls the tenth switch transistor T 10 and respective pixel circuit unit The circuit between storage capacitance C in 20 is in the conductive state, so that in driving chip 10 and respective pixel circuit unit 20 Storage capacitance C is electrically connected, and then 10 Anodic voltage compensation signal of driving chip is exported into respective pixel circuit unit 20 Storage capacitors C in.
Optionally, in the step of carrying out signal write-in processing to storage capacitance C in each pixel circuit unit 20, further include The step of (before signal write-in) carries out initialization process to the storage capacitance C in respective pixel circuit unit 20 in advance；To right The step of answering storage capacitance C in pixel circuit unit 20 to carry out initialization process includes: the in control circuit for detecting unit 30 Three switch transistor Ts 3 are in the conductive state, and control the storage capacitance C in third switch transistor T 3 and respective pixel circuit unit 20 it Between circuit it is in the conductive state so that reset signal (reset) end led with the storage capacitance C in respective pixel circuit unit 20 It is logical, and then storage capacitance C is initialized.
Wherein, the circuit controlled between the storage capacitance C in the tenth switch transistor T 10 and respective pixel circuit unit 20 is in In the step of on state, controls second switch T2 in corresponding circuit for detecting unit 30 and be in off state, and control and be located at The tenth switch transistor T 10 in same group at least two adjacent circuit for detecting units 30 is individually connected, different Period exports 10 Anodic voltage compensation signal of driving chip in the storage capacitors C into respective pixel circuit unit 20.
Specifically, as shown in Fig. 2, including two circuit for detecting units being disposed adjacent in one group of circuit for detecting unit 30 30, at this point, the circuit controlled between the storage capacitance C in the tenth switch transistor T 2 and respective pixel circuit unit 20 is on shape In the step of state, one of circuit for detecting unit 30 in two adjacent circuit for detecting units 30 is controlled in the third period The tenth switch transistor T 10 it is in the conductive state, the tenth switch transistor T 10 of another circuit for detecting unit 20 is in off state； It is in the tenth switch transistor T 10 that the 4th period for being different from the third period controls one of circuit for detecting unit 30 Tenth switch transistor T 10 of off state, another circuit for detecting unit 30 is in the conductive state, so that in the third period It is carried out respectively to corresponding pixel circuit unit 20 is independent by 10 Anodic voltage compensation of driving chip with the 4th period Signal exports the step in the storage capacitors C into respective pixel circuit unit 20.
The control terminal of tenth switch transistor T 10 of one of circuit for detecting unit 30 and another circuit for detecting unit 30 The control terminal of the tenth switch transistor T 10 access the 5th different clock signal S5.As shown in Fig. 2, one of circuit for detecting The control terminal of tenth switch transistor T 10 of unit 30 accesses the 5th clock signal S5 (1), and the of another circuit for detecting unit 30 The control terminal of ten switch transistor Ts 10 accesses the 5th clock signal S5 (2).
Optionally, (the one of detecting electricity above-mentioned of the previous circuit for detecting unit 30 in each group circuit for detecting unit Road unit 30) the control terminal of the tenth switch transistor T 10 access identical 5th clock signal S5 (1), the latter circuit for detecting The control terminal of tenth switch transistor T 10 of unit 30 (another circuit for detecting unit 30 above-mentioned) accesses identical 5th timing Signal S5 (2).
Controlled by the 5th clock signal S5 of input the tenth switch transistor T 10 in corresponding circuit for detecting unit 30 conducting or Person's cut-off.
Step S122: electroluminescent cell D is driven in each pixel circuit unit 20 to carry out luminous.
Wherein driving in each pixel circuit unit 20 electroluminescent cell D to carry out luminous step includes: release storage Electric current in capacitor C opens shape to control to be in current control driving tube (T5) storage capacitance C in the conductive state State, so that corresponding electroluminescent cell D is in luminance.
Optionally, electroluminescent cell D in each pixel circuit unit 20 is driven to carry out luminous step, further include ( Before promoting electroluminescent cell D to shine) anode of the electroluminescent cell D in respective pixel circuit unit 20 is answered in advance The step of position processing；The step of reset processing is carried out to the anode of the electroluminescent cell D in respective pixel circuit unit 20 packet Include: third switch transistor T 3 is in the conductive state in control circuit for detecting unit 30, and controls in corresponding pixel circuit unit 20 First switch tube T1 is in the conductive state, so that reset signal (reset) end and the electroluminescent hair in respective pixel circuit unit 20 The anode of optical element D is connected, and carries out reset processing with the anode potential to corresponding electroluminescent cell D.
Current control driving tube optionally, reconnaissance phase use reset signal and the display stage used by reset signal Difference, specifically, the current potential of reset signal reset is higher than the second operating voltage VSS, and reset signal in reconnaissance phase The pressure difference of reset and the second operating voltage VSS are greater than the cut-in voltage of electroluminescent cell D.In the display stage, reset signal The current potential of reset is less than or equal to the current potential of the second operating voltage VSS.By the above-mentioned means, enabling to electroluminescent in reconnaissance phase Light-emitting component D shines, to reduce influence of the detecting process for electroluminescent cell D.
As shown in Fig. 2, each pixel circuit unit 20 further comprises the 4th switch transistor T 4, the 5th driving tube T5, the 6th Switch transistor T 6, the 7th switch transistor T 7, the 8th switch transistor T 8 and the 9th switch transistor T 9.
Specifically, in the step of carrying out signal write-in processing to storage capacitance C in each pixel circuit unit 20,
The step of carrying out initialization process to the storage capacitance in respective pixel circuit unit includes: control enable signal EM to control the first path terminal and the cut-off of alternate path end of the 4th switch transistor T 4, and controls the first of the 6th switch transistor T 6 and leads to Terminal and the cut-off of alternate path end；Scanning signal scan is controlled, is led to controlling the first path terminal and second of first switch tube T1 Terminal cut-off；Third clock signal S3 is controlled, to control the first path terminal and the cut-off of alternate path end of the 7th switch transistor T 7, and Control the first path terminal and the cut-off of alternate path end of the 9th switch transistor T 9；The second clock signal S2 is inputted, is opened with controlling third The first path terminal and the conducting of alternate path end for closing pipe T3, input the 4th clock signal S4, to control the of the 8th switch transistor T 8 One path terminal and the conducting of alternate path end, so that reset signal reset resets storage capacitance C.
10 Anodic voltage compensation signal of driving chip is exported to the step of the storage capacitors into respective pixel circuit unit Suddenly include: control enable signal EM, to control the first path terminal and the cut-off of alternate path end of the 4th switch transistor T 4, and control the First path terminal of six switch transistor Ts 6 and the cut-off of alternate path end；Scanning signal scan is controlled, to control first switch tube T1's First path terminal and the cut-off of alternate path end；The 4th clock signal S4 is controlled, to control the first path terminal of the 8th switch transistor T 8 End with alternate path end；Third clock signal S3 is inputted, to control the first path terminal and alternate path of the 7th switch transistor T 7 End conducting, and control the first path terminal and the conducting of alternate path end of the 9th switch transistor T 9；The 5th clock signal S5 is inputted, with control The first path terminal and the conducting of alternate path end for making the tenth switch transistor T 10, so that driving chip 10 is by anode voltage thermal compensation signal Storage capacitance C is written.
In the step of describing in front, the 5th driving tube T5 is also on state, this is because storage capacitance C exists After completing initialization process, a constant current can be retained, this portion of electrical current can input the control terminal of the 5th driving tube, with control the 5th The first path terminal of driving tube T5 and the conducting of alternate path end, the 9th switch transistor T 9, the 5th driving tube T5 and the 7th switch at this time Pipe T7 is on state, and storage capacitance C can be written in anode voltage thermal compensation signal by driving chip 10, at the same time, the The electric current of seven switch transistor Ts, 7 first path terminal output understands some control terminal for flowing into the 5th driving tube T5, is driven with control the 5th The first path terminal of dynamic pipe T5 and alternate path end are in the conductive state.
Specifically, electroluminescent cell D in each pixel circuit unit 20 is driven to carry out in luminous step,
The step of carrying out reset processing to the anode of the electroluminescent cell D in respective pixel circuit unit 20 includes: control Enable signal EM processed to control the first path terminal and the cut-off of alternate path end of the 4th switch transistor T 4, and controls the 6th switching tube The first path terminal of T6 and the cut-off of alternate path end；Third clock signal S3 is controlled, it is logical with control the 7th switch transistor T 7 first Terminal and the cut-off of alternate path end, and control the first path terminal and the cut-off of alternate path end of the 9th switch transistor T 9；Control the 4th Clock signal S4 inputs scanning signal scan to control the first path terminal and the cut-off of alternate path end of the 8th switch transistor T 8, with Control the first path terminal and the conducting of alternate path end of first switch tube T1；The second clock signal is inputted, to control third switch The first path terminal and the alternate path end of pipe T3 is so that reset signal reset answers the anode potential of electroluminescent cell D Position.
So that it includes: control scanning signal scan control that corresponding electroluminescent cell D, which is in the step of luminance, First path terminal of one switch transistor T 1 and the cut-off of alternate path end；Third clock signal S3 is controlled, to control the 7th switch transistor T 7 The first path terminal and alternate path end cut-off, and control the 9th switch transistor T 9 the first path terminal and alternate path end cut-off； The 4th clock signal S4 is controlled, to control the first path terminal and the cut-off of alternate path end of the 8th switch transistor T 8；The enabled letter of input Number EM to control the first path terminal and the conducting of alternate path end of the 4th switch transistor T 4, and controls the first of the 6th switch transistor T 6 Path terminal and the conducting of alternate path end, so that electroluminescent cell D shines.
Driving method provided herein is a continuous process, and specifically, control scanning signal scan is to along the Each pixel circuit unit 20 of one direction arrangement scan line by line (second direction), to positioned at same row (second direction) and even Be connected to 20 synchronous scanning of each pixel circuit unit positioned at different groups of circuit for detecting unit, with carry out storage capacitance C initialization, The write-in of storage capacitance C signal, the anode potential reset of electroluminescent cell D, electroluminescent cell D shine；To positioned at same row (second direction) and each pixel circuit unit 20 for being connected to the circuit for detecting unit positioned at identical group, is successively scanned, with Carry out storage capacitance C initialization, the write-in of storage capacitance C signal, the anode potential reset of electroluminescent cell D, electroluminescent member Part D shines；Meanwhile the pixel circuit unit 20 being located in same row (first direction) is successively scanned, with storage capacitance C Initialization, the write-in of storage capacitance C signal, the anode potential reset of electroluminescent cell D, electroluminescent cell D shine and handle； That is, when being initialized again to storage capacitance C in pixel circuit unit 20 in the 4th column, to the third for completing storage capacitance C initialization Storage capacitance C in the pixel circuit unit 20 of column carries out signal write-in, to the secondary series for completing the write-in of storage capacitance C signal The anode potential of electroluminescent cell D in pixel circuit unit 20 is resetted, to the anode electricity for completing electroluminescent cell D Electroluminescent cell D in the pixel circuit unit 20 for the first row that position resets carries out luminous.Referring to Fig. 6, Fig. 6 is the application The structural schematic diagram of embodiment display panel.In this example it is shown that panel includes substrate 41 and is set on substrate 41 Pixel circuit 42.The pixel circuit 42 can be the pixel circuit in above-mentioned any one embodiment.
Substrate 41 can may be flexible base board for hard substrate, and the embodiment of the present application does not limit this.
The application includes driving chip and several pixel circuits connecting with driving chip by setting pixel circuit Unit and several circuit for detecting units, using circuit for detecting unit conducting driving chip with it is electroluminescent in respective pixel circuit unit The anode of light-emitting component.So as to get the anode potential of electroluminescent cell convenient for driving chip, it is convenient for subsequent display Compensation of the stage to anode potential, the circuit can be merged preferably with pixel circuit unit, and circuit structure is simple, and the circuit Structure designs convenient for reconnaissance phase with the display stage independently of each other, so that reconnaissance phase will not have an impact the display stage, and And it is connected between circuit for detecting unit by connection terminal by that will be located in one group, and drive is correspondingly connected with by the connection terminal The same pin of dynamic chip, can save the pin on driving chip, convenient for the saving of hardware resource.
The above is only embodiments herein, are not intended to limit the scope of the patents of the application, all to be said using the application Equivalent structure or equivalent flow shift made by bright book and accompanying drawing content is applied directly or indirectly in other relevant technology necks Domain similarly includes in the scope of patent protection of the application.

Claims (18)

1. a kind of pixel circuit, which is characterized in that the pixel circuit includes driving chip and connect with the driving chip Several pixel circuit units and several circuit for detecting units, wherein each circuit for detecting unit is independently Pixel circuit unit described in corresponding one group to arrange along first direction, and with each picture in pixel circuit unit described in one group The plain selectively coupled connection of circuit unit, the first direction are line direction or the column side for the pixel circuit unit being arranged in array To；Wherein,
Each pixel circuit unit includes at least first switch tube and electroluminescent cell, and the one of the first switch tube is logical Terminal is electrically connected with the anode of the electroluminescent cell, and the control terminal of the first switch tube connects scanning signal end；
Each circuit for detecting unit includes at least selection circuit, and the selection circuit includes at least second switch, described First path terminal of second switch connects the anode of electroluminescent cell therein by respective pixel circuit unit, and described The control terminal of two switching tubes connects the first clock signal end, and the alternate path end of the second switch connects the driving core Piece；
Wherein, when the second switch in the circuit for detecting unit is in the conductive state and the pixel of coupled connection When first switch tube in circuit unit is also on state, the first switch tube pair of the driving chip detecting on state The current potential of the anode of electroluminescent cell described in the pixel circuit unit answered；
The circuit for detecting unit that at least two in this second direction are disposed adjacent is one group, described in one group at least It is connected between two circuit for detecting units being disposed adjacent by connection terminal, and the driving is connected by the connection terminal The same pin of chip, the second direction is different from first direction, is the column side for the pixel circuit unit being arranged in array To or line direction.
2. pixel circuit according to claim 1, which is characterized in that each pixel circuit list arranged in a second direction First switch tube in member is connected to scan signal end.
3. pixel circuit according to claim 1, which is characterized in that
Each circuit for detecting unit further comprises reset circuit, and the reset circuit includes at least third switching tube, institute The first path terminal for stating third switching tube connects the sun of the wherein electroluminescent cell by the corresponding pixel circuit unit Pole, the control terminal of the third switching tube connect the second clock signal end, and the alternate path end connection of the third switching tube is multiple Position signal end.
4. pixel circuit according to claim 3, which is characterized in that
Each pixel circuit unit further comprises storage capacitance and is of coupled connections with the anode of the electroluminescent cell Current control driving tube, one end of the storage capacitance is selectively of coupled connections with the driving chip, and the other end is selective It is of coupled connections with the control terminal of the current control driving tube, for receiving and storing the anode voltage compensation from driving chip Signal, and the current control driving tube according to the anode voltage compensation signal control.
5. pixel circuit according to claim 4, which is characterized in that third switching tube in each circuit for detecting unit The first path terminal be of coupled connections with the storage capacitance in the corresponding pixel circuit unit, for the storage capacitors Carry out selective reset processing.
6. pixel circuit according to claim 4, which is characterized in that the selection circuit further comprises the tenth switch Pipe, one end of the first path terminal and the storage capacitance of the tenth switching tube are of coupled connections, alternate path end and the company Connecting terminal is connected with the driving chip, and control terminal connects the 5th clock signal end.
7. pixel circuit according to claim 4, which is characterized in that each pixel circuit unit further comprises Four switching tubes, the 5th driving tube, the 6th switching tube, the 7th switching tube, the 8th switching tube and the 9th switching tube, wherein described 5th driving tube is the current control driving tube, and the selection circuit in each circuit for detecting unit further comprises the tenth switch Pipe；
First path terminal of the 4th switching tube connects the first operating voltage end, and the alternate path end of the 4th switching tube connects The first path terminal of the 5th driving tube and the alternate path end of the 9th switching tube are connect, the control terminal of the 4th switching tube connects Connect enable signal end；
The alternate path end of 5th driving tube connect the 6th switching tube the first path terminal and the 7th switching tube Alternate path end, the control terminal of the 5th driving tube connects the second end of the storage capacitance；
The alternate path end of 6th switching tube connects alternate path end and the electroluminescent member of the first switch tube The control terminal of the anode of part, the 6th switching tube connects the enable signal end；
First path terminal of the 7th switching tube connects the control terminal of the 5th driving tube, the control of the 7th switching tube End connection third clock signal end；
First path terminal of the 8th switching tube connects the second end of the storage capacitance, and the second of the 8th switching tube is logical Terminal connects the first path terminal of the second switch and the first path terminal of third switching tube, the control of the 8th switching tube End processed connects the 4th clock signal end；
First path terminal of the 9th switching tube connects the first path terminal of the 5th switching tube, the 9th switching tube Alternate path end connects the first path terminal of the tenth switching tube, and the alternate path end of the tenth switching tube connects the company Connecting terminal and the connection driving chip, the control terminal of the 9th switching tube connect third clock signal end, and described the The control terminal of ten switching tubes connects the 5th clock signal end；
The first end of the storage capacitance connects first operating voltage, and the cathode of the electroluminescent cell connects the second work Make voltage, the first path terminal of the second switch connects the first path terminal of the first switch tube, the third switch First path terminal of the first path terminal connection first switch tube of pipe.
8. pixel circuit according to claim 7, which is characterized in that the 7th switching tube and the 8th switching tube are equal For double grid switching tube structure, the double grid switching tube structure includes the first sub switch pipe and the second sub switch pipe, first son The grid of switching tube and the second sub switch pipe is connected together as the control terminal of the double grid switching tube structure, and described First path terminal of first path terminal of one sub switch pipe as the double grid switching tube structure, the of the second sub switch pipe Alternate path end of two path terminals as the double grid switching tube structure, the alternate path end of the first sub switch pipe and described First path terminal of the second sub switch pipe connects.
9. a kind of driving method of pixel circuit of any of claims 1-8, which is characterized in that the driving method Include:
Detect the current potential of the anode of electroluminescent cell in each pixel circuit unit, and by the electricity of the anode of electroluminescent cell Position is embodied in formation anode voltage thermal compensation signal in driving chip；Wherein, each pixel circuit unit includes at least first Switching tube and electroluminescent cell；Each circuit for detecting unit includes at least selection circuit, and the selection circuit at least wraps Include second switch；The step of detecting the current potential of the anode of electroluminescent cell in each pixel circuit unit includes: defeated Enter second switch conducting in the first clock signal control circuit for detecting unit, input scanning signal controls respective pixel circuit list First switch tube is connected in member, so that driving chip is connected with the anode of electroluminescent cell in respective pixel circuit unit, And then obtain the current potential of the anode of the electroluminescent cell；
The driving chip calls the anode voltage thermal compensation signal and exports the anode voltage thermal compensation signal to corresponding Pixel circuit unit；
Wherein, in the first clock signal of input control circuit for detecting unit the step of second switch conducting, control is located at same Second switch in one group in at least two circuit for detecting units being disposed adjacent individually is connected, in different times Section obtains the current potential of the anode of the electroluminescent cell in respective pixel circuit unit respectively.
10. driving method according to claim 9, which is characterized in that each circuit for detecting unit further comprises Reset circuit, the reset circuit include at least third switching tube；
The step of detecting the current potential of the anode of electroluminescent cell in each pixel circuit unit further include: corresponded to obtaining Before the current potential of the anode of electroluminescent cell described in pixel circuit unit, to the current potential of the anode of the electroluminescent cell into Row initialization process；
Wherein, the step of carrying out initialization process to the current potential of the anode of the electroluminescent cell includes: the second timing of input Signal controls the third switching tube conducting, and input scanning signal controls the first switch tube conducting, so that reset signal end It is connected with the anode of electroluminescent cell described in respective pixel circuit unit, and then to the anode of the electroluminescent cell Current potential is initialized.
11. driving method according to claim 10, which is characterized in that
The anode of electroluminescent cell in detecting one group of pixel circuit unit corresponding with the circuit for detecting unit During current potential, the second clock signal of input controls the first path terminal of the third switching tube and alternate path supports continuous lead It is logical.
12. driving method according to claim 9, which is characterized in that each pixel circuit unit further includes storage capacitance The current control driving tube being of coupled connections with the anode with the electroluminescent cell, the selection of each pixel circuit unit Circuit further comprises the tenth switching tube,
The driving method includes:
Signal write-in processing is carried out to storage capacitance in each pixel circuit unit；Wherein to being stored in each pixel circuit unit Capacitor carry out the step of signal write-in processing include: in the control circuit for detecting unit the tenth switching tube it is in the conductive state, And the circuit controlled between the storage capacitance in the tenth switching tube and respective pixel circuit unit is in the conductive state, so that The driving chip is electrically connected with the storage capacitance in respective pixel circuit unit, and then by the driving chip middle-jiao yang, function of the spleen and stomach pole tension Thermal compensation signal exports in the storage capacitors into respective pixel circuit unit；And
Electroluminescent cell is driven in each pixel circuit unit to carry out luminous；It wherein drives electroluminescent in each pixel circuit unit It includes: the electric current discharged in storage capacitance that light-emitting component, which carries out luminous step, is on shape with the storage capacitance with control The current control driving tube of state is in opening state, so that corresponding electroluminescent cell is in luminance；
Wherein, the circuit controlled between the storage capacitance in the tenth switching tube and respective pixel circuit unit is on shape In the step of state, controls second switch in corresponding circuit for detecting and be in off state, and control and be located at least two in same group The tenth switching tube in a circuit for detecting being disposed adjacent individually is connected, with section in different times by the driving chip Anodic voltage compensation signal exports in the storage capacitors into respective pixel circuit unit.
13. driving method according to claim 12, which is characterized in that storage capacitance in each pixel circuit unit into It further include being carried out at initialization to the storage capacitance in corresponding pixel circuit unit in advance in the step of row signal write-in processing The step of reason；The step of carrying out initialization process to the storage capacitance in respective pixel circuit unit includes: the control detecting Third switching tube is in the conductive state in circuit unit, and controls the third switching tube and depositing in respective pixel circuit unit Circuit between storage appearance is in the conductive state, so that the storage capacitance in the reset signal end and respective pixel circuit unit Conducting, and then the storage capacitance is initialized；
It drives electroluminescent cell in each pixel circuit unit to carry out luminous step, further includes in advance to respective pixel circuit The anode of electroluminescent cell in unit carries out the step of reset processing；To the electroluminescent member in respective pixel circuit unit The anode of part carry out the step of reset processing include: in the control circuit for detecting unit third switching tube it is in the conductive state, And it is in the conductive state to control first switch tube in corresponding pixel circuit unit, so that the reset signal end and respective pixel The anode of electroluminescent cell in circuit unit is connected, and carries out reset processing with the anode potential to corresponding electroluminescent cell Current control driving tube.
14. driving method according to claim 13, which is characterized in that each pixel circuit unit further comprises 4th switching tube, the 5th driving tube, the 6th switching tube, the 7th switching tube, the 8th switching tube and the 9th switching tube,
In the step of carrying out signal write-in processing to storage capacitance in each pixel circuit unit,
The step of carrying out initialization process to the storage capacitance in respective pixel circuit unit includes: control the 4th switch Pipe, the 6th switching tube, the first switch tube, the 7th switching tube and the 9th switching tube cut-off；And control institute Third switching tube and the 8th switching tube conducting are stated, so that the reset signal resets the storage capacitance；
The step of driving chip Anodic voltage compensation signal is exported into the storage capacitors into respective pixel circuit unit It include: control the 4th switching tube, the 6th switching tube, the first switch tube and the 8th switching tube cut-off；And The 5th driving tube, the 7th switching tube, the 9th switching tube and the tenth switching tube conducting are controlled, so that described The storage capacitance is written in the anode voltage thermal compensation signal by driving chip；
Electroluminescent cell in each pixel circuit unit is driven to carry out in luminous step,
The step of carrying out reset processing to the anode of the electroluminescent cell in respective pixel circuit unit includes: control described the Four switching tubes, the 6th switching tube, the 7th switching tube, the 8th switching tube, the cut-off of the 9th switching tube, and control first and open Pipe and the conducting of third switching tube are closed, so that the reset signal resets the anode potential of the electroluminescent cell；
So that it includes: the control first switch tube, the described 7th that corresponding electroluminescent cell, which is in the step of luminance, Switching tube, the 8th switching tube and the 9th switching tube cut-off, and control the 4th switching tube, the 5th driving Pipe, the 6th switching tube conducting, so that the electroluminescent cell shines.
15. driving method according to claim 9, which is characterized in that each pixel circuit arranged in a second direction First switch tube in unit shares same scan signal；First in each pixel circuit unit of first direction arrangement Switching tube is respectively independently connected respective scanned signal；In reconnaissance phase and display stage, along first direction to the pixel circuit In each pixel circuit unit progressively scanned.
16. driving method according to claim 9, which is characterized in that corresponding to each picture arranged in a second direction Plain circuit unit, third switching tube shares same second clock signal and same reset signal in the circuit for detecting unit.
17. driving method according to claim 9, which is characterized in that corresponding to each pixel electricity arranged in a second direction Road unit, the control terminal of second switch is according to electroluminescent cell in respective pixel circuit unit in the circuit for detecting unit Luminescent color access the first different clock signals.
18. a kind of display panel, which is characterized in that the display panel includes substrate and the pixel circuit that is set on substrate, The pixel circuit is the pixel circuit as described in claim 1-8 any one.
CN201811537143.0A 2018-12-14 2018-12-14 Display panel, pixel circuit and its driving method Pending CN109545141A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201811537143.0A CN109545141A (en) 2018-12-14 2018-12-14 Display panel, pixel circuit and its driving method
PCT/CN2019/103378 WO2020119185A1 (en) 2018-12-14 2019-08-29 Display panel, pixel circuit and driving method therefor
US17/000,586 US20200388216A1 (en) 2018-12-14 2020-08-24 Display panel, pixel circuit and method for driving pixel circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811537143.0A CN109545141A (en) 2018-12-14 2018-12-14 Display panel, pixel circuit and its driving method

Publications (1)

Publication Number Publication Date
CN109545141A true CN109545141A (en) 2019-03-29

Family

ID=65856480

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811537143.0A Pending CN109545141A (en) 2018-12-14 2018-12-14 Display panel, pixel circuit and its driving method

Country Status (3)

Country Link
US (1) US20200388216A1 (en)
CN (1) CN109545141A (en)
WO (1) WO2020119185A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110853559A (en) * 2019-12-26 2020-02-28 云谷（固安）科技有限公司 Detection control circuit and detection control method of display panel and display panel
CN110880293A (en) * 2019-12-09 2020-03-13 上海视欧光电科技有限公司 Pixel compensation circuit, display panel and pixel compensation method
CN111028758A (en) * 2019-12-26 2020-04-17 云谷（固安）科技有限公司 Display panel, driving method thereof and display device
WO2020119185A1 (en) * 2018-12-14 2020-06-18 昆山国显光电有限公司 Display panel, pixel circuit and driving method therefor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009042486A (en) * 2007-08-08 2009-02-26 Sanyo Electric Co Ltd Electroluminescence display device
KR20110057531A (en) * 2009-11-24 2011-06-01 엘지디스플레이 주식회사 Organic light emitting diode display and driving method thereof
CN104732920A (en) * 2013-12-24 2015-06-24 乐金显示有限公司 Organic light emitting display device
CN105448238A (en) * 2014-09-19 2016-03-30 乐金显示有限公司 Organic light emitting display device
KR20170021406A (en) * 2015-08-17 2017-02-28 엘지디스플레이 주식회사 Degradation Sensing Method For Emitting Device Of Organic Light Emitting Display
US20170193896A1 (en) * 2015-12-30 2017-07-06 Samsung Display Co., Ltd Pixel circuit and organic light emitting display device including the same
CN107039004A (en) * 2017-06-08 2017-08-11 深圳市华星光电技术有限公司 The aging compensation approach of AMOLED display panels

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7859501B2 (en) * 2007-06-22 2010-12-28 Global Oled Technology Llc OLED display with aging and efficiency compensation
CN105247603B (en) * 2013-06-27 2017-07-11 夏普株式会社 Display device and its driving method
CN106157882B (en) * 2015-04-24 2019-01-15 上海和辉光电有限公司 Dot structure
KR102402605B1 (en) * 2015-07-28 2022-05-27 삼성디스플레이 주식회사 organic light emitting display
CN107978271B (en) * 2017-12-20 2021-02-26 上海交通大学 OLED display device and driving method thereof
CN109616052A (en) * 2018-12-14 2019-04-12 昆山国显光电有限公司 Display panel, pixel circuit and its driving method
CN109545141A (en) * 2018-12-14 2019-03-29 昆山国显光电有限公司 Display panel, pixel circuit and its driving method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009042486A (en) * 2007-08-08 2009-02-26 Sanyo Electric Co Ltd Electroluminescence display device
KR20110057531A (en) * 2009-11-24 2011-06-01 엘지디스플레이 주식회사 Organic light emitting diode display and driving method thereof
CN104732920A (en) * 2013-12-24 2015-06-24 乐金显示有限公司 Organic light emitting display device
CN105448238A (en) * 2014-09-19 2016-03-30 乐金显示有限公司 Organic light emitting display device
KR20170021406A (en) * 2015-08-17 2017-02-28 엘지디스플레이 주식회사 Degradation Sensing Method For Emitting Device Of Organic Light Emitting Display
US20170193896A1 (en) * 2015-12-30 2017-07-06 Samsung Display Co., Ltd Pixel circuit and organic light emitting display device including the same
CN107039004A (en) * 2017-06-08 2017-08-11 深圳市华星光电技术有限公司 The aging compensation approach of AMOLED display panels

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020119185A1 (en) * 2018-12-14 2020-06-18 昆山国显光电有限公司 Display panel, pixel circuit and driving method therefor
CN110880293A (en) * 2019-12-09 2020-03-13 上海视欧光电科技有限公司 Pixel compensation circuit, display panel and pixel compensation method
CN110853559A (en) * 2019-12-26 2020-02-28 云谷（固安）科技有限公司 Detection control circuit and detection control method of display panel and display panel
CN111028758A (en) * 2019-12-26 2020-04-17 云谷（固安）科技有限公司 Display panel, driving method thereof and display device
CN110853559B (en) * 2019-12-26 2023-02-24 云谷（固安）科技有限公司 Detection control circuit and detection control method of display panel and display panel
CN111028758B (en) * 2019-12-26 2023-02-28 云谷（固安）科技有限公司 Display panel, driving method thereof and display device

Also Published As

Publication number Publication date
US20200388216A1 (en) 2020-12-10
WO2020119185A1 (en) 2020-06-18

Similar Documents

Publication Publication Date Title
CN109545141A (en) Display panel, pixel circuit and its driving method
CN106415702B (en) Display device and electronic equipment
CN104282257B (en) Display device, driving method and electronic equipment for display device
CN110021263A (en) Pixel circuit and its driving method, display panel
CN105575333B (en) OLED display and source electrode driver
CN105137656B (en) A kind of backlight module, its driving method and display device
US10679556B2 (en) Pixel circuit having a switching circuit, a shared circuit, a first sub-pixel circuit and a second sub-pixel circuit and driving method thereof, display panel
CN104835451B (en) A kind of display base plate, display device and its driving method
CN109599062A (en) Pixel circuit and its driving method, display device
CN107274825A (en) Display panel, display device, pixel-driving circuit and its control method
CN110047436A (en) Pixel circuit, array substrate, its driving method, display panel and display device
CN108417149A (en) A kind of display panel and its driving method, display device
CN109671398A (en) Driving method, display panel and the display device of pixel-driving circuit
CN108648690A (en) A kind of display panel and display device
CN105895027B (en) The data drive circuit of AMOLED display device
CN109616052A (en) Display panel, pixel circuit and its driving method
CN106157896A (en) Pixel-driving circuit, image element driving method, array base palte and display floater
CN110060636A (en) Display device and display unit
CN109493804A (en) A kind of pixel circuit, display panel and display device
CN104282260B (en) Display device, driving method and electronic equipment for display device
CN108538245A (en) A kind of driving method of display panel, display panel and display device
CN108447448A (en) A kind of scan drive circuit, scanner driver and display device
CN106683635A (en) Driving circuit structure of RGBW display panel
CN107111974A (en) Display device and electronic equipment
CN108230982A (en) Pixel-driving circuit and method, display panel

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190329